[Family genetic analysis of paternal Dystrophin gene mutations in a case of female Duchenne muscular dystrophy].
Zhonghua Yi Xue Za Zhi
; 101(48): 3973-3976, 2021 Dec 28.
Article
em Zh
| MEDLINE
| ID: mdl-34955001
ABSTRACT
A pedigree genetic analysis of a female Duchenne muscular dystrophy (DMD) inherited from paternal chimerism was conducted to explore the genetic diagnosis strategy. No large deletions/duplications was found in the DMD gene of the proband. Next-generation sequencing (NGS) results showed that the proband had a heterozygous mutation in the DMD gene c.4707C>A (p.C1569X). This locus has not been reported in the literature and is considered as a pathogenic mutation. Sanger sequencing revealed that the father of the proband carried the same mutation, and the mosaic ratio was about 17.7%. The specific enzyme digestion test showed that the proband had maternal skewed X-inactivation. DMD a recessive inherited disease of the X chromosome, exists in female patients, and very few of them are inherited from paternal origin. Female patients need to pay close attention to skewed X-inactivation and suspected new mutations. Mosaic is not excluded, especially the inheritance of paternal mosaicism with normal phenotype. Prenatal gene screening is necessary for reproduction.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Distrofina
/
Distrofia Muscular de Duchenne
Tipo de estudo:
Prognostic_studies
Limite:
Female
/
Humans
/
Pregnancy
Idioma:
Zh
Ano de publicação:
2021
Tipo de documento:
Article